User Guide

Academic Courseware:
Joyce Ryan
98
DPI — Dots per inch. The resolution of output devices (printers) is
measured in DPI.
Field Guide — Traditionally, when animation is created on cels and
shot with a camera, the area of the picture that is framed by the camera
is known as the field size. Field guides (also called graticules) are used by
animators to plot the proportions of artwork to film frame.
File Size — The amount of storage space, measured in kilobytes, that
your file will take up on a storage device. Various file formats can
compress a file so that it takes less space to store.
File Format — Files can be saved in a variety of formats, depending on
the attributes needed. RIF is the Corel Painter native format, which
retains special information about your document. For example, a RIF file
maintains layers, so that you can return to the file to make changes to
individual layers and elements.
Frame Stacks — In Corel Painter, digital video and animation files are
known as movies or frame stacks.
Halftone Screen — Refers to a screen printed with a pattern of dots. A
halftone screen must be applied to a continuous-tone image like a
photograph or a painting to break up the image into dots for printing.
The resolution of the halftone screen is designated as LPI (lines per inch).
LPI — Lines per inch. Also referred to as “screen frequency,” “screen
ruling,” or “line screen.” LPI refers to the number of dots or halftone
cells per inch used to print grayscale images or color separations.
Pixel — Abbreviated from “picture element,” it is the smallest discrete
element of an image displayed on a monitor. Each pixel is made up of 3
phosphors, emitting red, green and blue. A single line of pixels arrayed
in a row on a television screen makes a “raster line.”
PPI — Pixels per inch.
QuickTime — Apple Computer’s standard file format for integrating
full-motion video and sound into application programs.
Raster — The set of horizontal lines composed of pixels, used to form
an image on a television or monitor.